Hugh mcdoug-all



IH.f,M0D9UGA"LL.' Button and Stud.

Patented Dec. 14,1880.

(Nomdel.)

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l To all whom t may concern HUGH MoDoUGALL, on

PATENT GFFICE.

BROOKLY, NEW YORK.

BUTTON AND STUD.

SPECIFICATION forming part of Letters Patent-No. 235,445, dated December 14, 1880.

Application filed October 2S, 1880.

Beit known that I, HUGH MoDoUeALL, of Brooklymin the county of Kings and State of New York, have invented certain new and useful Improvements in Buttons and Studs, of which the follow-ingis a specification.

My invention relates to sleeveand collar buttons and studs, which comprise, in connection with afront plate, a post and a fixed arm, a movable arm pivoted to the post by a pivot larranged parallel with the front plate and provided with a toe, and a catch for engaging and lookin g said toe, and through it the movable arm.

The object of my invention is to enable such buttons4 and studs to be readily removed from the button-holes by the use of one hand only, the thumb being used to disengage the catch from the toe and the thumb and fingers for pulling the button or stud out of the buttonhole.

To this end the invention consists in the combination, in a button or stud, of a front plate,

'a post and ixed arm, a movable arm secured to said post by a pivot V,arranged parallel with y said front plate and provided with a toe, a

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catch for engaging said toe,a push-pin projecting beyond the'fronty plate andadapted to be moved longitudinally inward toY disengage said catch from said toe, and a spring for returning said catch and push-pin.

The catch for engaging the toe upon the movable arm may be formed upon a lever, which is' pivoted to the front plate and is act-- uated by said push-pin, and the catch may project from said lever through an openingin the post, which forms a guide therefor.

In the accompanying drawings, Figure lrepresents a perspective view of the under side of a button embodyingA my invention. represents a horizontal section through the post and a plan of .the under side of the front plate and the devicesattached thereto. Fig. 3 represents a perspective view of the under side of a buttonof slightly-modified form with a portion of the post broken away. Fig. 4 represents a view of the button shown in Fig. 3, similar to Fig.. 2; and Fig. 5 represents a transverse' section ofja button of another slightly- 5o modied form.

Fig. 2.

(No model.)

Similar letters of reference designate corresponding parts in all the iigures.

Referring rst to Figs. l and 2, A designates a front plate, which is preferably made of metal, and may be ornamented or finished to suit the taste of the manufacturer.

B designates a post, and'C designates a flxed arm projecting from the post. As here represented, the said post and arm are made of a single piece, bent so as to form a bow-shaped arm and an open post, the two ends of said piece being fixed to the front plate, A.

D designates a movable arm, which is secured to the post B by a pivot, a, arranged parallel with the front plate, A, and is adapted to be turned down within the open bow-shaped fixed arm C when the button is to be inserted in a button-hole, as shown in dotted outline in Fig. 5, so as to bring the arm D into a position approximately parallel with the arm C.

The movable arm D is provided with a toe, b, which extends transversely to it; and o designates a catch, which works in an opening, d, on one side of the post B, and is adapted to obtrude itself in the way of said toe to hold it in a locked position.

In order to prevent the toe from being moved too far back,I provide a stop, e, fixed to the front plate, as seen clearly in Fig. 2.

In the present example of my invention the catch c projects from a lever, f, which is pivoted to the front plate, A, at j", and is actuated by a push-pin, g, which projects beyond the front plate, A, and is adapted to be pushed inward to actuate the lever f and withdraw `the catch o from engagement with the toe b.

The push-pin g is movable in a bearing, g', attached to the front plate, A, and in a hole in said front plate, and is provided with a stopcollar, g2, which strikes against the said bearing g' and limits the return movement of the push-pin.

The end of the catch o is inclined or slanted, so as to cause the toe b to push it back when the movable arm I) is moved to lock the button in a button-hole; and h designates a spring, which eiects the return movement of the lever f and push-pin g, and holds the catch o in eugagement with the toe b.

When the button is to be disengaged from IOO a button-hole the button is grasped between the thumb and two iirst fingers of one hand. The push-pin g is pushed inward to discngage the catch c from the toe b, and the button is then pulled outward and slightly to one side to disengage it entirely from the button-hole.

It Will thus be seen that one hand only is necessary to unlock the button and remove it entirely from the cut.

The button shown in Figs. 3 and 4 dil'ers from that previously described in the arrangement of the leverf, and that the push-pin has no bearing g and no stop-collar g". In this View the leverf is pivoted atf, and has in it a notch, one side of which forms a shoulder or catch, c, for the toe b, and the other side a stop, e, therefor.

The button shown in Fig.5 di'ers from those already described, in that the leverf is pivoted atf, so as to work vertically instead of horizontally, and the ends of the push-pin g and leverf are wedge shaped, so that when the pin is pushed inward it will tilt said lever, but so that the spring h may return the lever and push-pin to their normal positions.

The leverfis furnished with a notch in its under side, one face or side of which forms a shoulder or catch, c, and the other side of which forms a stop, e, to prevent the undue movement of the toe I) and movable arm 1).

What 1 claim as my invention, and desire to secure by Letters Patent, is-

l. The combination, in a button or stud, ot' a front plate, a post, and a xed arm, a movable arm secured to said post by a pivot arranged parallel with said front plate, and provided with a toe, a catch for engagingr said toe, a push-pin projecting beyond the front plate and adapted to be moved inward to disengage said catch from said toe, and a spring for returning said catch and push-pin, substantially as specified.

2. The combination, in a button or stud, of a front plate, a post, and a xed arm, a movable arm secured to said post by a pivot arranged parallel with said front plate, and provided with a toe, a lever pivoted to said front plate and provided with a catch for engaging said toe, a push-pin projecting beyond said front plate and adapted to be moved inward to actuatc said lever and disengage said toe, and a spring for returning said lever and push pin, substantially as specified.

3. The combination of a front plate, A, a post, B, a fixed arm, C, a movable arm, D, provided with a toe, b, a lever, f, provided with a catch, c, which projects through an opening, d, in said post, a push-pin, g, for actuating said lever, and a spring, h,all substantially as specitied.

HUGH MCDOUGALL. Witnesses:

HENRY T. BROWN, FREDK. HAYNEs. 

